Influence of the number of reinforcement layers on the bearing capacity
of strip foundation resting on sandy soil
الباحث الأول:
Noor Ali Fakher
الباحثين الآخرين:
Mohammed Kadhim Fakhruldin
المجلة:
Al-Qadisiyah Journal for Engineering Sciences
تاريخ النشر:
4 نوفمبر، 2020
مختصر البحث:
Reinforced soil technology is considered one of the most important methods of soil improvement due to
its simplicity, easy implementation and saving cost. One of the known soil reinforcement methods is using
geogrids to improve the bearing capacit…
Reinforced soil technology is considered one of the most important methods of soil improvement due to
its simplicity, easy implementation and saving cost. One of the known soil reinforcement methods is using
geogrids to improve the bearing capacity of the soil and reduce the settlement of the soil beneath
foundation. In this study, a strip foundation made of a rigid stainless steel with dimensions of 490 mm
length, 135 mm width, and 40 mm thickness and reinforced with geogrid (called Tensar SS2) was tested
in a laboratory model to investigate the effect of the number of reinforcement layers on the bearing
capacity and settlement. The soil was reinforced with one, two, three, and four layers of geogrid (Tensar
SS2). The obtained results showed that the reinforcement using geogrid system significantly improved the
bearing capacity while reducing the settlement under the strip foundation compared with unreinforced
soil. The test result also showed a good improvement in the bearing capacity when the number of
reinforcement layers increased from one to four layers. The bearing capacity of the foundation increased
when the soil reinforced by four layers of geogrid to about 2.5 times compared with the case of one layer
of geogrid. In addition, the maximum settlement decreased to about 2.0 times compared with the case
